Modulation of Second Messenger Signaling in the Brain Through PDE4 and PDE5 Inhibition: Therapeutic Implications for Neurological Disorders

Phosphodiesterase (PDE) enzymes regulate intracellular signaling pathways crucial for brain development and the pathophysiology of neurological disorders. Among the 11 PDE subtypes, PDE4 and PDE5 are particularly significant due to their regulation of cyclic adenosine monophosphate (cAMP) and cyclic...

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Main Authors: Min Kyu Park, Hyun Wook Yang, Seo Young Woo, Dong Yeon Kim, Dae-Soon Son, Bo Young Choi, Sang Won Suh
Format: Article
Language:English
Published: MDPI AG 2025-01-01
Series:Cells
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Online Access:https://www.mdpi.com/2073-4409/14/2/86
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author Min Kyu Park
Hyun Wook Yang
Seo Young Woo
Dong Yeon Kim
Dae-Soon Son
Bo Young Choi
Sang Won Suh
author_facet Min Kyu Park
Hyun Wook Yang
Seo Young Woo
Dong Yeon Kim
Dae-Soon Son
Bo Young Choi
Sang Won Suh
author_sort Min Kyu Park
collection DOAJ
description Phosphodiesterase (PDE) enzymes regulate intracellular signaling pathways crucial for brain development and the pathophysiology of neurological disorders. Among the 11 PDE subtypes, PDE4 and PDE5 are particularly significant due to their regulation of cyclic adenosine monophosphate (cAMP) and cyclic guanosine monophosphate (cGMP) signaling, respectively, which are vital for learning, memory, and neuroprotection. This review synthesizes current evidence on the roles of PDE4 and PDE5 in neurological health and disease, focusing on their regulation of second messenger pathways and their implications for brain function. Elevated PDE4 activity impairs synaptic plasticity by reducing cAMP levels and protein kinase A (PKA) activity, contributing to cognitive decline, acute brain injuries, and neuropsychiatric conditions such as bipolar disorder and schizophrenia. Similarly, PDE5 dysregulation disrupts nitric oxide (NO) signaling and protein kinase G (PKG) pathways, which are involved in cerebrovascular homeostasis, recovery after ischemic events, and neurodegenerative processes in Alzheimer’s, Parkinson’s, and Huntington’s diseases. PDE4 and PDE5 are promising therapeutic targets for neurological disorders. Pharmacological modulation of these enzymes offers potential to enhance cognitive function and mitigate pathological mechanisms underlying brain injuries, neurodegenerative diseases, and psychiatric disorders. Further research into the regulation of PDE4 and PDE5 will advance therapeutic strategies for these conditions.
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spelling doaj-art-558033a8b0454b84a8ac586ae8e3bd132025-01-24T13:26:37ZengMDPI AGCells2073-44092025-01-011428610.3390/cells14020086Modulation of Second Messenger Signaling in the Brain Through PDE4 and PDE5 Inhibition: Therapeutic Implications for Neurological DisordersMin Kyu Park0Hyun Wook Yang1Seo Young Woo2Dong Yeon Kim3Dae-Soon Son4Bo Young Choi5Sang Won Suh6Department of Physiology, College of Medicine, Hallym University, Chuncheon 24252, Republic of KoreaDepartment of Physiology, College of Medicine, Hallym University, Chuncheon 24252, Republic of KoreaDepartment of Physiology, College of Medicine, Hallym University, Chuncheon 24252, Republic of KoreaDepartment of Physiology, College of Medicine, Hallym University, Chuncheon 24252, Republic of KoreaDivision of Data Science, Data Science Convergence Research Center, Hallym University, Chuncheon 24252, Republic of KoreaInstitute of Sport Science, Hallym University, Chuncheon 24252, Republic of KoreaDepartment of Physiology, College of Medicine, Hallym University, Chuncheon 24252, Republic of KoreaPhosphodiesterase (PDE) enzymes regulate intracellular signaling pathways crucial for brain development and the pathophysiology of neurological disorders. Among the 11 PDE subtypes, PDE4 and PDE5 are particularly significant due to their regulation of cyclic adenosine monophosphate (cAMP) and cyclic guanosine monophosphate (cGMP) signaling, respectively, which are vital for learning, memory, and neuroprotection. This review synthesizes current evidence on the roles of PDE4 and PDE5 in neurological health and disease, focusing on their regulation of second messenger pathways and their implications for brain function. Elevated PDE4 activity impairs synaptic plasticity by reducing cAMP levels and protein kinase A (PKA) activity, contributing to cognitive decline, acute brain injuries, and neuropsychiatric conditions such as bipolar disorder and schizophrenia. Similarly, PDE5 dysregulation disrupts nitric oxide (NO) signaling and protein kinase G (PKG) pathways, which are involved in cerebrovascular homeostasis, recovery after ischemic events, and neurodegenerative processes in Alzheimer’s, Parkinson’s, and Huntington’s diseases. PDE4 and PDE5 are promising therapeutic targets for neurological disorders. Pharmacological modulation of these enzymes offers potential to enhance cognitive function and mitigate pathological mechanisms underlying brain injuries, neurodegenerative diseases, and psychiatric disorders. Further research into the regulation of PDE4 and PDE5 will advance therapeutic strategies for these conditions.https://www.mdpi.com/2073-4409/14/2/86phosphodiesterase (PDE)phosphodiesterase 4 (PDE4)phosphodiesterase 5 (PDE5)protein kinase A (PKA)protein kinase G (PKG)
spellingShingle Min Kyu Park
Hyun Wook Yang
Seo Young Woo
Dong Yeon Kim
Dae-Soon Son
Bo Young Choi
Sang Won Suh
Modulation of Second Messenger Signaling in the Brain Through PDE4 and PDE5 Inhibition: Therapeutic Implications for Neurological Disorders
Cells
phosphodiesterase (PDE)
phosphodiesterase 4 (PDE4)
phosphodiesterase 5 (PDE5)
protein kinase A (PKA)
protein kinase G (PKG)
title Modulation of Second Messenger Signaling in the Brain Through PDE4 and PDE5 Inhibition: Therapeutic Implications for Neurological Disorders
title_full Modulation of Second Messenger Signaling in the Brain Through PDE4 and PDE5 Inhibition: Therapeutic Implications for Neurological Disorders
title_fullStr Modulation of Second Messenger Signaling in the Brain Through PDE4 and PDE5 Inhibition: Therapeutic Implications for Neurological Disorders
title_full_unstemmed Modulation of Second Messenger Signaling in the Brain Through PDE4 and PDE5 Inhibition: Therapeutic Implications for Neurological Disorders
title_short Modulation of Second Messenger Signaling in the Brain Through PDE4 and PDE5 Inhibition: Therapeutic Implications for Neurological Disorders
title_sort modulation of second messenger signaling in the brain through pde4 and pde5 inhibition therapeutic implications for neurological disorders
topic phosphodiesterase (PDE)
phosphodiesterase 4 (PDE4)
phosphodiesterase 5 (PDE5)
protein kinase A (PKA)
protein kinase G (PKG)
url https://www.mdpi.com/2073-4409/14/2/86
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